\begin{table}%t1
\caption{\label{tab:obs_value}Observed properties of the CS(7$-$6) and HCN(4$-$3) lines for different positions (Fig.~\ref{fig:plot_line}).}
\small
%\centerline
{
\begin{tabular}{cllcccccc}
\hline\hline\noalign{\smallskip}
Position & Line & Coordinates & $V_{\rm LSR}^{a}$ & $V_{\rm LSR}^{b}$  &  $\Delta V_{\rm {\it FWHM}}^{a}$ & $T_{\rm Peak}^{a}$  & $F^{c}$ & $F_{\rm HCN} / F_{\rm CS}$ \\
         &      & $\alpha$ / $\delta$ (J2000)       & (km s$^{-1}$) & (km s$^{-1}$) & (km s$^{-1}$) & (K) & (Jy beam$^{-1}$~km~s$^{-1}$) & \\
\hline\noalign{\smallskip}
A    & HCN(4$-$3) & 20$^{\rm h}$29$^{\rm m}$24\fs87 /  & $-$4.21$~\pm$~0.04  & $-$4.7$~\pm$~0.1   &  8.4$~\pm$~0.1   & 67.7$~\pm$~0.7 & 67.8$~\pm$~1.1  & 1.77 \\
     & CS(7$-$6)  & +40\degr 11\arcmin 19.5\arcsec     & $-$5.14$~\pm$~0.03  & $-$5.15$~\pm$~0.07 &  5.50$~\pm$~0.07 & 65.2$~\pm$~0.7 & 38.3$~\pm$~0.7  &      \\
A$^1$& HCN(4$-$3) & 20$^{\rm h}$29$^{\rm m}$24\fs90 /  & $-$3.6$~\pm$~0.1    & $-$4.5$~\pm$~0.2   &  3.3$~\pm$~0.4   & 15.4$~\pm$~1.2 & 7.8$~\pm$~1.1   & 1.59 \\
     & CS(7$-$6)  &  +40\degr 11\arcmin 22.0\arcsec    & $-$4.77$~\pm$~0.09  & $-$4.5$~\pm$~0.1   &  2.8$~\pm$~0.2   & 16.0$~\pm$~1.0 & 4.9$~\pm$~0.7   &      \\
A$^2$& HCN(4$-$3) & 20$^{\rm h}$29$^{\rm m}$24\fs59 /  & $-$5.4$~\pm$~0.2    & $-$5.3$~\pm$~0.5   &  5.8$~\pm$~0.4   & 11.7$~\pm$~0.8 & 9.1$~\pm$~1.1   & 1.57  \\
     & CS(7$-$6)  &    +40\degr 11\arcmin 20.4\arcsec  & $-$5.31$~\pm$~0.08  & $-$5.2$~\pm$~0.1   &  2.8$~\pm$~0.2   & 17.2$~\pm$~1.0 & 5.8$~\pm$~0.7   &       \\
B    & HCN(4$-$3) & 20$^{\rm h}$29$^{\rm m}$24\fs48 /  & $-$3.8$~\pm$~0.4    & $-$4.3$~\pm$~1.1   &  8.8$~\pm$~0.9   & 8.1$~\pm$~0.7  & 7.8$~\pm$~1.1   & 1.63  \\ 
     & CS(7$-$6)  &  +40\degr 11\arcmin 22.4\arcsec    & $-$5.0$~\pm$~0.3    & $-$4.6$~\pm$~0.7   &  6.1$~\pm$~0.6   & 7.9$~\pm$~0.7  & 4.8$~\pm$~0.7   &       \\
\hline
\end{tabular}}
\smallskip
$^{a}$ Gaussian fit;
$^{b}$ 1st moment $\left(\int T V ~ {\rm d}V / \int T ~ {\rm d}V\right)$; 
$^{c}$ integrated spectra, the conversion factor K/(Jy beam$^{-1}$) is 7.88 (HCN) and 8.64 (CS).
\end{table}